-82.84% is the change from 909 to 156
Calculation steps:
[( 156 - 909 ) ÷ 909] x 100 = -82.84%
Formula
Percentage change = [(156 - 909) / 909] x 100
Subtract the new number by the original number
156 - 909 = -753
-753 ÷ 909 = -0.8283828382838284
-0.8283828382838284 x 100 = -82.84%